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JAS-1B (FO-20) (20480)
COSPAR: 1990-013C | Alt Name: Fuji-OSCAR-20
Image
Additional Sources
Launch Details
Launch Date
February 7, 1990
Launch Site
TANSC
Launch Pad
N
Launch Vehicle
H-1
Orbital Elements
NORAD ID
20480
International Designator
1990-013C
Epoch
Sat, 04 Jul 2026 05:45:56 GMT
Apogee
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Perigee
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Inclination
99.07°
Right Ascension
104.99°
Eccentricity
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Argument of Perigee
106.03°
Period
112.19 min
Mean Motion
12.83 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
Basic Satellite Info
Name
JAS-1B (FO-20)
Alternative Name
Fuji-OSCAR-20
Type
Payload
Status
Non-operational
Owner
JARL
Country
Japan
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 20480U 90013C 26185.24023833 -.00000008 00000-0 45522-4 0 9995
2 20480 99.0720 104.9901 0540713 106.0321 260.1000 12.83490703705525
Source: Celestrak
Summary
JAS-1B (FO-20), also known as Fuji-OSCAR-20, is an amateur radio communication satellite with a NORAD catalog ID of 20480 and OBJECT_ID 1990-013C. Launched on February 7, 1990, from the Tanegashima Space Center using the H-1 launch vehicle, it was manufactured by JARL (Japan Amateur Radio League) and operated under the same ownership. The satellite has a length of 0.5 meters, diameter of 0.4 meters, span of 0.5 meters, and a dry mass of 50 kg. It is equipped with digital and analog transponders in modes JD and JA, respectively, along with a beacon transmitter for amateur radio communications. The satellite's power system relies on solar cells and batteries to maintain operation. Its shape is polyhedral and has a radar cross-section (RCS) of 0.2687 square meters.
Physical Characteristics
Length
0.5
Diameter
0.4
Span
0.5
Dry Mass
50
Launch Mass
50
Shape
Poly
Radar Cross Section
0.2687
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
JAS-1b
Purpose
Amateur radio communication
Mission
Amateur radio communication
Manufacturer
JARL
Life Expectancy
Unknown
Bus
JAS
Configuration
Unknown
Motor
None
Equipment
Digital Transponder - Mode JD Analog Transponder - Mode JA, Beacon
Power System
Solar cells, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Map
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration
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